/*
 * Copyright 2006-2008 Michele Mostarda ( michele.mostarda@gmail.com ).
 * All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.graphnav.aggregator.storage;

import java.net.URI;

/**
 * Defines a triple iterator.
 */
public interface TripleIterator {

    boolean hasNext();

    void next();

    URI getSubject();

    URI getPredicate();

    URI getObjectAsURI();

    String getObjectAsString();

    boolean objectIsURI();

}
